Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature . s Fig. 211. Part of the lingual ribbon of Testacella haliotidea The lingual teeth of the amber snails are likethose of Helix; in Succinea pzitris, the formula is.

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Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectscience